From: Derick Rethans <derick@php.net>
Date: Tue, 25 Oct 2005 07:54:13 +0000 (+0000)
Subject: - Fixed segfault in case an empty parameter was passed.
X-Git-Tag: RELEASE_0_9_1~23
X-Git-Url: https://granicus.if.org/sourcecode?a=commitdiff_plain;h=bc6dba17e4aae0785c96e40735c80cbecca03a16;p=php

- Fixed segfault in case an empty parameter was passed.
---

diff --git a/ext/filter/filter.c b/ext/filter/filter.c
index 7ce2033806..eedf49920a 100644
--- a/ext/filter/filter.c
+++ b/ext/filter/filter.c
@@ -342,8 +342,10 @@ static unsigned int php_sapi_filter(int arg, char *var, char **val, unsigned int
 	Z_STRLEN(new_var) = val_len;
 	Z_STRVAL(new_var) = estrndup(*val, val_len + 1);
 	Z_TYPE(new_var) = IS_STRING;
-	if (! (IF_G(default_filter) == FS_UNSAFE_RAW)) {
-		php_zval_filter(&new_var, IF_G(default_filter), 0, NULL, NULL/*charset*/ TSRMLS_DC);
+	if (val_len) {
+		if (! (IF_G(default_filter) == FS_UNSAFE_RAW)) {
+			php_zval_filter(&new_var, IF_G(default_filter), 0, NULL, NULL/*charset*/ TSRMLS_DC);
+		}
 	}
 
 	php_register_variable_ex(orig_var, &new_var, orig_array_ptr TSRMLS_DC);